CensusEasy
RANKING · 1990 CENSUS · 72 SHOWN OF 72

Least racially diverse, Wisconsin counties · 1990

Wisconsin counties with the lowest CensusEasy Diversity Score, where most residents share the same race or ethnicity (2023 ACS). This list covers the 72 counties in Wisconsin that qualify, ranked against each other statewide.

Flip the list · Most racially diverse, US counties
WisconsinAll statesAll rankings
SAME RANKING BYCitiesStatesMetrosZIP codes
RELATEDOldest by median ageYoungest by median ageMost foreign-born residentsHighest uninsured rateMost womenMost men
YEAR19902000201020202024
Least racially diverse by state
RANKPLACESTATEPOPDIVERSITY SCOREVS 2000
01Iowa County, WIWI23,9511−52%
02Iron County, WIWI6,1271−31%
03Lafayette County, WIWI17,4781−34%
04Taylor County, WIWI20,1181−38%
05Trempealeau County, WIWI31,1712−39%
06Buffalo County, WIWI13,3182−32%
07Richland County, WIWI17,0362−39%
08Vernon County, WIWI31,4432−10%
09Price County, WIWI13,9882−25%
10Pepin County, WIWI7,5132+35%
11Green County, WIWI37,2272−41%
12Marinette County, WIWI42,5742−24%
13Kewaunee County, WIWI20,7582−5%
14Clark County, WIWI35,0522−40%
15Florence County, WIWI4,7482+14%
16St. Croix County, WIWI98,2763−32%
17Lincoln County, WIWI28,4033−29%
18Grant County, WIWI52,4463−25%
19Barron County, WIWI46,4843−18%
20Washington County, WIWI139,2383−45%
21Oconto County, WIWI40,1953+25%
22Door County, WIWI30,6163−9%
23Chippewa County, WIWI67,6143−11%
24Langlade County, WIWI19,5344+17%
25Sauk County, WIWI66,6524−33%
26Polk County, WIWI45,8034+24%
27Crawford County, WIWI15,9104−32%
28Waupaca County, WIWI51,4614−10%
29Calumet County, WIWI53,9824−42%
30Pierce County, WIWI43,5194+18%
31Green Lake County, WIWI19,3055−24%
32Juneau County, WIWI26,6495−12%
33Oneida County, WIWI38,1315+54%
34Ozaukee County, WIWI94,3465−39%
35Wood County, WIWI74,0605−28%
36Monroe County, WIWI46,5725−23%
37Washburn County, WIWI17,0875+73%
38Columbia County, WIWI58,1326−18%
39Rusk County, WIWI14,1466+54%
40Marquette County, WIWI15,9276−61%
41Manitowoc County, WIWI81,7106−32%
42Fond du Lac County, WIWI104,6697−29%
43Portage County, WIWI71,9437−28%
44Marathon County, WIWI139,4327−46%
45Dunn County, WIWI46,2238−5%
46Jefferson County, WIWI86,5058−33%
47Winnebago County, WIWI174,2188−35%
48Dodge County, WIWI89,0978−35%
49Waushara County, WIWI25,2238−18%
50Douglas County, WIWI43,9909+77%
51Outagamie County, WIWI195,8949−22%
52Waukesha County, WIWI417,2109−20%
53Eau Claire County, WIWI109,03310−0%
54Burnett County, WIWI17,22311+200%
55La Crosse County, WIWI121,33911−9%
56Brown County, WIWI275,80311−35%
57Sheboygan County, WIWI118,04712−35%
58Jackson County, WIWI20,99912+12%
59Shawano County, WIWI41,56013+205%
60Walworth County, WIWI106,12713−29%
61Adams County, WIWI21,75216+205%
62Rock County, WIWI166,47217−20%
63Dane County, WIWI590,37518−30%
64Vilas County, WIWI23,76121+528%
65Bayfield County, WIWI16,78722+692%
66Ashland County, WIWI16,20322+391%
67Menominee County, WIWI4,19924−37%
68Forest County, WIWI9,57425+269%
69Kenosha County, WIWI168,44825−17%
70Sawyer County, WIWI18,84633+665%
71Racine County, WIWI198,91938−9%
72Milwaukee County, WIWI924,21655−16%
SHOWING 1–72 OF 72
Download CSV (full list, 72 rows)How this score is calculated

UPDATED 2026-06-02 · DATA: US CENSUS BUREAU ACS 5-YEAR ESTIMATES